#include <SPI.h>
#include <Ucglib.h>

// Pin mapping for ESP32-2432S028 (CYD)
#define TFT_CS   15
#define TFT_DC   2
#define TFT_RST  -1   // Not connected
#define TFT_SCK  14
#define TFT_MOSI 13
#define TFT_MISO 12

// UCGLib constructor for ILI9341 SPI (hardware SPI)
Ucglib_ILI9341_18x240x320_HWSPI ucg(/*cd=*/TFT_DC, /*cs=*/TFT_CS, /*reset=*/TFT_RST);

void setup() {
  Serial.begin(115200);
  Serial.println("ESP32-2432S028 UCGLib Shapes + Grid + Fonts");

  SPI.begin(TFT_SCK, TFT_MISO, TFT_MOSI, TFT_CS);
  ucg.begin(UCG_FONT_MODE_TRANSPARENT);
  ucg.clearScreen();
  ucg.setRotate90();   // Landscape orientation

  // Draw grid background
  ucg.setColor(50, 50, 50); // gray lines
  for (int x = 0; x < ucg.getWidth(); x += 20) {
    ucg.drawVLine(x, 0, ucg.getHeight());
  }
  for (int y = 0; y < ucg.getHeight(); y += 20) {
    ucg.drawHLine(0, y, ucg.getWidth());
  }

  // Draw shapes
  ucg.setColor(255, 0, 0);   // Red triangle
  ucg.drawTriangle(60, 60, 120, 160, 20, 160);

  ucg.setColor(0, 0, 255);   // Blue rectangle
  ucg.drawBox(150, 80, 60, 40);

  ucg.setColor(0, 255, 0);   // Green circle
  ucg.drawDisc(250, 120, 30, UCG_DRAW_ALL);

  // Text in different fonts
  ucg.setColor(255, 255, 0); // Yellow text
  ucg.setFont(ucg_font_ncenR14_tr);
  ucg.setPrintPos(40, 30);
  ucg.print("HELLO, ARVIND!");

  ucg.setColor(0, 255, 255); // Cyan text
  ucg.setFont(ucg_font_helvB18_tr);
  ucg.setPrintPos(40, 220);
  ucg.print("UCGLIB DEMO");

  ucg.setColor(255, 128, 0); // Orange text
  ucg.setFont(ucg_font_9x15_tr);
  ucg.setPrintPos(200, 200);
  ucg.print("GRID + SHAPES");
}

void loop() {
  // Static demo, no animation
}